Bug#1018233: fife: X Error of failed request: GLXBadDrawable

[Tobias Frost]

German Debian Forums had thread about it [1], and there is a 
Workaround documented:

The workaround is to run the application in a Xephyr environment
(package xserver-xephyr), which seems to be without hardware acceleration.

Example for how to use the workaround: 

  Xephyr :99 -resizeable -screen 1400x1050 &
  DISPLAY=:99 unknown-horizons

[1] https://debianforum.de/forum/viewtopic.php?t=183160#p1292067
(Thanks hikaru)

--
tobi